The battle against ISIS militants (also abbreviated as Daesh, ISIL, IS and Islamic State) continues in the Middle East.

The bloody war in Syria has allowed ISIS to seize large swathes of land stretching from central Iraq to northern Syria.

On the campaign trail, Mr Trump vowed to “bomb the hell” out of ISIS and promised to end “radical Islamic terrorism” around the world.

Brutal fighting and civil war have ripped Syria apart over the past six years, forcing millions of refugees to flee the country.

More than 400,000 people had been killed during the conflict by April 2016, according to an estimate cited by a UN envoy.

Iraq remains engulfed in political instability as it struggles to recover from the US invasion to topple Saddam Hussein in 2003.

But Iraq is not included in the new travel ban due to commitments from Iraq's Government on the vetting of Iraqi nationals.

Express

New travel ban: Donald Trump has now removed Iraq from the list of banned countries

Why is Trump trying to ban from Iran?

Iran has long been hostile towards the US and immediately banned American travellers in response to Mr Trump’s travel ban.

During Mr Obama’s time in office, relations between the countries thawed and sanctions were lifted following a nuclear deal with Iran.

But Mr Trump has branded it "the worst deal ever negotiated" and told Americans that he will either rip the deal up or seek a better agreement.

Why is Trump trying to ban immigration from Yemen?

Mr Trump’s first counterterrorism operation was a firefight with Qaeda militants in central Yemen. The US is engaged in a shadow war against Al Qaeda’s Yemen affiliate.

Yemen's civil war broke out more than two years ago between those allied to the Houthi rebel movement and forces loyal to President Abdrabbuh Mansour Hadi.

Yemen Crisis: 19-month civil war continues

Wed, November 16, 2016

Schools and hospitals have been bombed, children are currently malnourished, the scale of suffering is the result of an ongoing conflict in Yemen. An estimated 10,000 people have been killed, according to the UN. Express Pictures reports the shocking photographs taken from inside the ongoing crisis in Yemen.